EP2982528A1 - Axle suspension for steered rigid axles in vehicles, especially commercial vehicles - Google Patents
Axle suspension for steered rigid axles in vehicles, especially commercial vehicles Download PDFInfo
- Publication number
- EP2982528A1 EP2982528A1 EP15001677.2A EP15001677A EP2982528A1 EP 2982528 A1 EP2982528 A1 EP 2982528A1 EP 15001677 A EP15001677 A EP 15001677A EP 2982528 A1 EP2982528 A1 EP 2982528A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- link
- point link
- axle suspension
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
- B60G9/02—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle, e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle
- B60G9/022—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle, e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle the axle having an imaginary pivotal point
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/314—Rigid axle suspensions with longitudinally arranged arms articulated on the axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/154—Fluid spring with an accumulator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/016—Constructional features of suspension elements, e.g. arms, dampers, springs allowing controlled deformation during collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/121—Constructional features of arms the arm having an H or X-shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/20—Constructional features of semi-rigid axles, e.g. twist beam type axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
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- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
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- B60G2206/8101—Shaping by casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60G—VEHICLE SUSPENSION ARRANGEMENTS
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- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8206—Joining by riveting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8207—Joining by screwing
Definitions
- the invention relates to an axle suspension for steered rigid axles in vehicles, in particular in commercial vehicles.
- axle suspensions for commercial vehicles which are articulated by an axle guide arranged on both sides of the vehicle trailing arm, which are hinged on the one hand to the vehicle axle and the other part of the vehicle body, and anchored in the vehicle center with a central joint to the vehicle axle and with the ends of its two struts on the other hand articulated to the vehicle body wishbone be formed.
- a generally U-shaped stabilizer bar is further provided.
- a simplified axle suspension for rigid axles is from the DE 195 21 874 A1 known.
- the proposed axle suspension has a four-point link, consisting of two stable articulated arms, which are firmly connected to each other by a tensile structure, the latter being designed twistable with a defined characteristic of twisting.
- the joints of the trailing arm are arranged below the vehicle axle, while the four-point link is located above the vehicle axle and thus also above the trailing arm.
- this four-point link no separate space for the storage of a stabilizer bar longer required; nevertheless, the space required for this suspension of the axle makes it more difficult to arrange it, in particular in the case of a steered front axle of a commercial vehicle, since the space available there is particularly limited owing to engine components and other components.
- the four-point link described is due to the surface structure of strength engineering technically difficult to control, so that no optimal roll stability can be achieved.
- the invention is in particular the task of a simpler, space and cost-saving design such an axle suspension, which enables a secure vehicle longitudinal and transverse vehicle guidance and vehicle stabilization.
- the axle suspension according to the invention for steered rigid axles in vehicles has in accordance with the prior art two arranged on both sides of the longitudinal axis of the vehicle and extending in the longitudinal direction of the vehicle, the steered rigid axle with the vehicle body vertically movable connecting trailing arm on.
- the two trailing arms are preferably arranged substantially at the same height, but can also be arranged offset from one another in the vertical direction.
- the axle suspension comprises a four-point link, which is connected on the one hand articulated to the rigid axle and on the other hand articulated to the vehicle body.
- the trailing arms are used for vehicle longitudinal guidance, while the four-point link takes over the functions of the vehicle longitudinal / transverse vehicle guidance and the vehicle stabilization.
- the four-point link and the trailing arm are arranged below the vehicle body, for example below a vehicle frame and / or below the vehicle frame side members. Furthermore, the four-point link is arranged below the trailing arm.
- the handlebar recordings of the four-point link can be aligned plane-parallel to each other, but this is not mandatory.
- a particular advantage of the present invention is therefore that can be dispensed through the use of the lower four-point link of Panhardstab together with connection. By eliminating the Panhardstabs also eliminates the vehicle lateral acceleration in a spring movement.
- Another advantage of the axle suspension according to the invention is that the axle suspension between the vehicle frame side members and below the vehicle frame longitudinal members at the level of the trailing arm takes up no space, so that this space can be used for the arrangement of other vehicle components.
- the steered rigid axle can also be designed as a trailing axle or as a leading axle of a commercial vehicle.
- the four-point linkage of the axle suspension comprises in the installed state of the four-point link perpendicular to the vehicle longitudinal direction extending central part, at both ends of which a first link arm and a second link arm are fixedly connected to the middle part, wherein the two first link arms articulated to the vehicle body and the two second link arms are pivotally connected to the rigid axle.
- these four link arms extend away from the central area to form a cross or an H-shaped structure.
- the middle part can be arranged centrally to the handlebar arms, so that each two halves of a link arm, which lie on opposite sides of the middle part, are substantially equal in length.
- the middle part can also be arranged offset to the center of the link arms, so that the parts lying on opposite sides of the middle parts of the link arms are different lengths.
- the trailing arm and the control arms of the four-point link form a substantially equal angle to a vehicle frame longitudinal member of the vehicle body or run the trailing arm substantially parallel to below arranged arms of the four-point link.
- the angle to the vehicle longitudinal member changes during driving due to the articulated suspension, but remain the trailing arm and the control arms of the four-point link according to this variant in a side view aligned substantially parallel to each other.
- the trailing arm are hinged so that a sweep is formed forward in the direction of travel or in the opposite direction, so that the trailing arm in the transverse direction, d. H. perpendicular to the vehicle's longitudinal axis, with the handlebars form an acute angle.
- the link arms extend away from the central part to form an H-shaped structure.
- the central part may be rod-shaped, cylindrical, rod-shaped, tubular or designed as a profile piece.
- the middle part is in particular twistable, d. H. designed twistable, the torsion properties can be given by the manufacturing process advantageous.
- the middle part and / or the control arms can also be designed cranked. With a cranked design, the space requirement can be adapted to the available space.
- the four-point link can be made in several parts.
- the middle part may be materially connected to the control arms, preferably by gluing or welding.
- a further possibility of the realization according to the invention provides that the middle part is connected via a positive connection, preferably a toothing, with the handlebar arms, wherein the positive connection is additionally secured by a rivet or screw connection.
- a particularly strong detachable connection can be realized.
- the abovementioned multi-part variants have the advantage that smaller tools can be used for the production of the individual components of the four-point link, whereby a cost-effective production process is made possible. Furthermore, the handling of the components is facilitated.
- the central part is integrally connected end to end with the corresponding control arms, which allows a particularly strong connection of the central part of the handlebar arms.
- the middle part consists of two parts, for example two halves, which are non-rotatably connected to one another at a connection point, for example by means of a frictional connection.
- the central part may consist of two parts, each having a flange surface which are rotatably connected to a rivet or screw connection.
- the middle part may be made of a plastic or at least partially made of a plastic, wherein the plastic is preferably a glass fiber (GFK) or carbon fiber reinforced (CFK) plastic.
- the handlebar arms can be made of steel or cast iron. This variant has the advantage that the choice of material for the individual sections of the four-point link can be optimally adapted to the individual functions, for example, the safety-relevant longitudinal guide is ensured by the steel-made handlebars, the less safety-related stabilization by a fabricated with a lighter material middle part provided.
- the connection between the middle part and the control arms is not limited to a particular connection technology.
- the middle part can be designed as a closed cavity, which is designed to store a fluid.
- This variant has the advantage that the middle part in addition to the roll stabilization in addition as storage for compressed air or other fluid, eg. As steering oil, can be used and thus a separate fluid reservoir can be avoided, whereby a further reduction of the required space is made possible.
- the middle part can be designed as a closed tube and the handlebar arms have a side open profile.
- the profile that is open to the side can be formed, for example, from two parallel edges.
- the trained middle part allows a particularly lightweight design of the four-point link.
- the middle part and the link arms can be formed of solid material, which allows a particularly high stability.
- the central part formed of solid material can also be hollow-drilled in order to enable a weight reduction. This variant has the advantage that the four-point link can be forged while a designed as a closed tube center part Requires casting process for the production, if used as a material steel or cast iron.
- core support recesses may be provided on the central part of the four-point link in order to design the cast manufacturing process more securely.
- the middle part can have a profile structure which is open at the bottom and / or at the top.
- a profile structure open at the bottom is a profile structure that is open towards the roadway side in the mounted state of the four-point link.
- the middle part can have a predetermined failure point.
- the target failure point is designed as a predetermined breaking point, so that breaks in a possible overload of the four-point link of the middle part and not the link arms.
- Such a desired failure point can also be designed so that it comes in an overload to a twist in the central region.
- a Sollversagungsstelle or predetermined breaking point in the middle part has the advantage that a longitudinal guidance of the vehicle is always given. As a result, an emergency function (so-called "limp home mode") can be ensured after a break.
- the transverse rigidity can be ensured by wire ropes or the like.
- the bearing mounts of the four-point link can be made stiffened.
- the four-point link according to the invention can also be used in other axle suspensions.
- the variants of the four-point link according to the invention should therefore also be regarded as disclosed and claimable independently of the axle suspension.
- Another aspect of the invention thus relates to a four-point link according to one of the variants described above.
- the invention relates to a commercial vehicle with an axle suspension of the steered live axle according to one of the preceding aspects. Furthermore, the invention relates to a four-axle utility vehicle with two air-suspension front axles, wherein for each of the two air suspension front axles an axle suspension is provided according to one of the preceding aspects.
- Reference numeral 3 denotes a frame longitudinal member of the vehicle frame of a commercial vehicle associated with the vehicle body.
- the vehicle frame is designed in a conventional manner and has on both sides of the vehicle depending on such a frame side member 3. Between these longitudinal members 3 usually cross member (not shown) are arranged.
- the axle suspension 10 comprises two arranged at the same height respectively below the frame side members 1 of the vehicle and extending in the longitudinal direction of the vehicle, the steered rigid axle 6 with the vehicle frame side member 3 vertically movable connecting trailing arm 5. From the steered live axle is in Figure 1A the axle body 6 is shown as well as the cantilevered away to the side cantilevers 8, the end have an axle fulcrum 8A.
- the vehicle frame longitudinal members 3 For frame-side attachment of the trailing arm 5, the vehicle frame longitudinal members 3 at its front end to a fixedly arranged fastening element 4, to which a frame-side end of the trailing arm 5A 5 is articulated.
- the fastening element 4 extends from the longitudinal frame member 3 vertically downwards and is attached to the underside of the frame side member 3 and via a lateral mounting plate 4A on the transverse side of the frame side member 3.
- each bifurcated bearing points 7 are mounted on the axle beam 6 below the longitudinal frame members 3, on which the axle-side end 5B of the trailing arm 5 is mounted.
- the axle suspension further comprises a four-point link 30, which is connected on the one hand articulated to the steered live axle 6 and on the other hand articulated to the vehicle body, here the vehicle frame longitudinal members 3.
- the four-point link consists of a perpendicular to the longitudinal direction of the vehicle arranged central portion 31, which is provided with an open profile cross-section and at the ends in one piece, the two legs 32 of the four-point link 30 are arranged, each leg 32 of a first link arm 32A and a second link arm 32B consists.
- the handlebar arms 32 of the four-point link at its end facing away from the central region 31 each have a hollow cylindrical bearing receptacle 1, hereinafter also referred to as bearing eye.
- a bearing receptacle 1 is in each case a pressed-in bearing 2, for example, a molecular bearing or a sliding bearing, with lateral claws, for attachment of the four-point link to the frame or axle 6.
- the articulated joints of the trailing arm 5 and the articulated joints 1, 2 of the four-point link 30 are gimbaled movable.
- the alignment of the claws 2 for attachment of the four-point link to the frame 3 or axle 6 can vary as desired and depends essentially on the kinematic or elastokinematischen conditions.
- the bearing eyes are not necessarily part of the four-point link. You can also attached later, z. B. welded, are screwed.
- the storage of the four-point link can with the usual known from the prior art storage techniques, such as molecular bearings, plain bearings, active or adaptive, etc., be realized.
- Figure 1A shows that the four-point link 30 and the trailing arm 5 are arranged below the vehicle body longitudinal frame 30 associated vehicle body and that further the four-point link 30 is disposed below the trailing arm 5.
- the axle suspension in the space between the longitudinal frame members 3 and between the trailing arms 5 above the four-point link requires no space, which is thus advantageously otherwise available for use.
- the axle guide shown take the upper trailing arm 5 "only" the longitudinal guide, d. h., tensile and compressive forces are transmitted to the chassis.
- the lower four-point link 30 assumes the functions of vehicle longitudinal / transverse vehicle guidance and vehicle stabilization.
- the four-point link also determines the stiffness of the chassis about the vertical axis, for example when braking.
- the central part of the four-point link serves in particular as a torsion and contributes mainly to roll stabilization of the vehicle and transmits the vehicle lateral forces.
- the middle part of the four-point link can take over the following tasks: stabilization of the vehicle, side force absorption, inclusion of a steering gear attachment (steering system is screwed on) or integration of a steering system, d. h.,
- the four-point link middle part also serves as a housing of the steering system.
- FIG. 1B shows the structure of the Figure 1A again in a side view.
- the trailing arm 5 and the handlebar arms 32A, 32B of the four-point link 30 are arranged to run parallel to each other, so that they form the same angle with the vehicle frame side member 3.
- the angle ⁇ of the trailing arm 5 to the longitudinal axis of the vehicle frame longitudinal member 3 is equal to the angle ß of the link arms 32A, 32B to the longitudinal axis of the vehicle frame longitudinal member 3.
- the upper trailing arm pair and the lower four-point link thus form a parallelogram in the ideal sense in the ideal sense.
- the acute angle of the trailing arm 5 and the link arms 32A, 32B to the vehicle frame side member 3 can be adjusted vehicle-specific different.
- a respective trailing arm 5 and the arm arms 32A and 32B arranged therebelow are arranged substantially in the same vertically extending plane.
- the trailing arm 5 are provided with a sweep, that are arranged in a horizontal plane twisted to the link arms 32A and 32B or to the longitudinal axis of the vehicle frame longitudinal member 3.
- a possible sweep of the trailing arm 5 can show both forward in the direction of travel and in the opposite direction.
- the Size of the sweep of the upper trailing arm 5 depends essentially on driving dynamic aspects and can be adjusted vehicle-specific.
- axle suspension is shown again in a bottom view. It should be emphasized that other four-point link, in particular the four-point link according to the FIGS. 4 to 13A instead of in the FIGS. 1A to 1C shown four-point link 30 can be used for axle suspension according to the invention.
- FIG. 2A shows a further embodiment of an axle suspension 20 of a four-axle vehicle with two air-suspension front axles 6.
- the wheels bellows or shock absorbers and the steering gear and the steering linkage are not shown.
- components with the same reference numerals correspond to the components of Figure 1A and will not be described separately.
- the structure corresponds in principle to the structure of FIG. 1 , With the special feature that now on each of the two air-suspension front axles 6, an axle suspension 10 is provided with a four-point link 30 and arranged above two trailing arms 5, which are in turn arranged below the vehicle frame longitudinal member 3.
- FIG. 2B a side view, wherein in addition to the elements of FIG. 2A now the steering system is shown, comprising a steering gear 9A, and a synchronization rod 9B for synchronization of the two axle suspensions, which is hinged to a fixed to the frame rail 3, rotatably mounted cam followers 9C.
- a cylinder 9D On the rocker arm 9C, a cylinder 9D is further articulated in a known manner, which is also fixedly and rotatably mounted on the vehicle frame 3 at its other end.
- each steering rods 9E of the steering system are arranged parallel and laterally offset from the trailing arms 5.
- FIGS. 3 to 13B described particularly advantageous embodiments of a four-point link, the use of which is particularly advantageous in the context of a previously described axle suspension.
- Each of the four-point handlebar embodiments described comprises a central part, at each of which a leg is arranged rotationally fixed substantially perpendicular to the central part, wherein a first portion of the legs are each formed by one of the first link arms and a second portion of the legs respectively by one of the second link arms ,
- the first link arms may be formed with different or equal length to the second link arms.
- a one-part design of the four-point link is understood to mean a one-piece design of the middle part and the legs arranged at both ends, wherein a first section of the legs respectively form a first link arm and a second section of the legs each form a second link arm.
- FIG. 3 shows a variant 30 of the four-point link. It was regarding the Figure 1A already mentioned that the four-point link comprises a mounted in the mounted state perpendicular to the longitudinal direction of the vehicle central part 31 which is provided with an open profile cross-section and at the ends in one piece the two legs 32 of the four-point link are arranged, each leg 32 of a first link arm 32A and a second link arm 32B.
- the hollow cylindrical bearing eyes 1 with pressed-in bearings 2 for mounting the four-point link on the axle suspension or the vehicle frame are respectively formed on the legs.
- the handlebar arms 32A and 32B have an H-shaped or double-U-shaped profile cross-section with the side edges 33, 34.
- the profile cross-section of the central portion 31 is open at the top and bottom and has individual longitudinally extending profile webs 38, which the middle part subdivided into individual rectangular profile depressions 39.
- the profile cross-section of the middle part 31 also has two diagonally extending profile webs 37, which traverse the rectangular profile depressions 39 and meet in the middle.
- the middle portion 30 is formed to the legs 32 with a slightly decreasing thickness, so that the thickness in the center 35 is greater than at the end portion 36 of the central portion 31st
- a particular advantage of this four-point link 30 is that the open component profile is particularly easy pourable or malleable.
- a predetermined breaking point can be provided in the middle part.
- the area in which the predetermined breaking point can be arranged is indicated by the area marked "Z" in FIG FIG. 3 shown.
- the predetermined breaking point can be formed by a notch or a region of increased material tension.
- the middle part is designed so that the middle part breaks at an overload on the predetermined breaking point, so that a longitudinal guidance of the vehicle is given on.
- the transverse rigidity can be ensured by wire ropes or the like when breaking the four-point link.
- FIG. 4 shows a further embodiment variant 40 of the four-point link.
- the central part 41 is provided with a triangular profile structure 45.
- the triangular profile structure can advantageously be formed from a transversely extending arrangement of triangular depressions, wherein adjacent depressions offset in the longitudinal direction and arranged by 180 °.
- the legs 42 and the handlebar arms 42A and 42B are arranged substantially perpendicular to the central part, but slightly curved or executed such that the handlebar arms are further removed at its axle-side and frame-side end portion in the transverse direction from the central portion 41 as its end on midsection.
- the link arms 42A and 42B also have an H-shaped or double U-shaped profile cross-section with the side edges 43, 44.
- the variant 40 is particularly well suited for production in the forging process.
- FIG. 5A shows a further embodiment variant 50 of the four-point link with a closed tubular central portion 51 and a side open profile of the legs 52.
- the legs are in turn mounted vertically on the central portion 51 in one piece and have a slightly curved or curved course.
- the profile which is open to the side is formed by two parallel edges 53, 54 offset in the vertical direction.
- FIG. 5B shows a further embodiment 50 of the four-point link of the FIG. 5A in an enlarged view of the central part 51, in which additionally so-called core supports 55 are provided in the end region of the middle part.
- the core posts 55 serve to make the casting manufacturing process safer and result from the positive retaining bolts of the molds.
- the location and arrangement of the core supports 55 depends on the requirements of the component function and strength.
- the core supports 55 arranged on the underside of the four-point link 50 but may also be mounted on both sides.
- the core supports can be closed again with other functional components, eg. B. with compressed air connections.
- FIG. 6 shows a further embodiment 60 of the four-point link, in which the middle part 61 and the legs 62 and the link arms 62A, 62B made of solid material, ie without a hollow cross-section, are formed.
- Such a four-point link is typically forged.
- FIG. 7 shows a modification 70 of this embodiment.
- the peculiarity of this embodiment is that the four-point link of the FIG. 6 was subsequently drilled hollow, so that the central part 71 comprises a continuous cavity 73.
- the legs 72 and Lenkerarme 72 A and 72 B correspond to the embodiment of FIG. 6 ,
- Multi-part embodiments of the four-point link are below in the FIGS. 8 to 13B described.
- FIG. 8 shows a variant 80 of a four-point link, wherein the legs 82, or handlebar arms 82A, 82B, for example, the legs 52 of the FIG. 5A correspond.
- the legs are not made in one piece with the Mitteilteil 81, but the hollow cylindrical central portion 81 is subsequently materially connected by welding at the junction 85 with the legs 82.
- the legs 82 are provided with a cylindrical connecting region 86 extending in the transverse direction.
- the side parts 182 consist of weldable material (cast iron or forged steel).
- the welding point is prepared in accordance with the welding requirements.
- the embodiment of the central part depends on the requirements of the weld, for example, suitable weld preparation, increase in diameter for lowering the voltage at the welds, etc ..
- FIG. 9 Another variant 90 of the four-point link is in FIG. 9 shown, in contrast to FIG. 8 now the middle part 91 is connected at the junction 95 with the legs 92 cohesively by gluing. This is particularly advantageous if the middle part 91 is made of a lightweight plastic, such as GRP or CFK, for example.
- FIG. 10 shows a further embodiment 100 of the four-point link, in which the middle part 101 consists of two parts, which are screwed centrally on a flange 107 by means of screws 108.
- the connection of the two parts of the central part 101 with the respective legs 102 is cohesively, for example by welding to the area 106.
- the two parts of the central part 101 at their Leg 102 facing end an increase in diameter 105 for lowering the voltage at the welds on.
- FIG. 11 shows a further embodiment 110, in which the middle part 111 in turn is centrally connected via a Flanschverschraubung 107, 108.
- the two parts 115, 116 of the middle part 111 are integrally connected to the legs 112 of the four-point link.
- FIGS. 12A to 12C a further embodiment variant 120 of the four-point link is shown.
- the peculiarity of this embodiment is that the central part 121 comprises a hollow cylindrical rod 125 which is connected via a positive connection in the form of a toothing 127 with the terminal portion 128 of the legs 122.
- the positive connection is additionally secured by a rivet or screw connection.
- This is shown in the side view 12B, which show the locking screws 129 on the inside of the hollow profile of the legs 122.
- through-holes are preferably used with a screw-nut connection 129.
- FIG. 12C shows in a section of the positive connection region 127 between the middle part 125 and the legs 122.
- the middle part 121 has at its end again a fürmesserverlyrungs Scheme 126 for adaptation to the connecting cross section 128 of the legs 122nd
- FIG. 13A shows a further embodiment variant 130 of the four-point link.
- the peculiarity of this embodiment variant is the design of the central part 131 as a closed cavity 135 (closed profile cross-section).
- the closed cavity 135 may be, for example be used as storage space for compressed air or other fluids. By using compressed air or other fluids, the physical properties of the chassis can be specifically influenced with four-point linkage (natural frequency, active roll stabilization, stiffness, etc.).
- the legs 132 and handlebar arms 132A and 132B are in turn designed as cast iron or forged steel parts with an H-shaped profile cross-section.
- the closed hollow cylinder 135 may, for example, be welded to the connecting region 136 on the legs 132.
- FIG. 13B shows the embodiment 130 of FIG. 13A again in a side sectional view.
- the four-point link different manufacturing processes are used, such as casting and forging, sintering, laser 3D printing, mechanical processing, etc ..
- different manufacturing processes such as casting and forging, sintering, laser 3D printing, mechanical processing, etc ..
- the occurring forces of the two component halves can be transmitted with different connection methods known from the prior art, for example by means of a frictional connection, for. B. clamping screws, by means of positive locking, z. B. dowel bolts, bolts for transmitting the shear forces, a Verrast réelle, a toothing, by means of a riveted joint, or by adhesion / cohesion (gluing).
- a connection of the legs by gluing with the middle part has the particular advantage that the material does not receive thermally induced stresses or local increases in voltage through the screw.
- the middle part of the four-point link may consist of a round material or any other shape material.
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Abstract
Die Erfindung betrifft eine Achsaufhängung (10) für gelenkte Starrachsen (6) in Fahrzeugen, insbesondere in Nutzfahrzeugen. Die Achsaufhängung (10) umfasst zwei sich im Wesentlichen auf gleicher Höhe beidseits der Längsachse des Fahrzeugs angeordnete und sich in Längsrichtung des Fahrzeugs erstreckende, die gelenkte Starrachse (6) mit dem Fahrzeugaufbau (3) vertikal beweglich verbindende Längslenker (5) und einen Vierpunktlenker (30), der einerseits gelenkig mit der gelenkten Starrachse (6) und andererseits gelenkig mit dem Fahrzeugaufbau verbunden ist. Der Vierpunktlenker (30) und die Längslenker (5) sind unterhalb des Fahrzeugaufbaus angeordnet, und der Vierpunktlenker ist unterhalb der Längslenker (5) angeordnet.The invention relates to an axle suspension (10) for steered rigid axles (6) in vehicles, in particular in commercial vehicles. The axle suspension (10) comprises two trailing arms (5) which are arranged vertically at the same height on both sides of the longitudinal axis of the vehicle and extend in the longitudinal direction of the vehicle, the steered rigid axle (6) vertically movably connecting to the vehicle body (3) and a four-point link ( 30), on the one hand hinged to the steered rigid axle (6) and on the other hand articulated to the vehicle body. The four-point link (30) and the trailing arm (5) are arranged below the vehicle body, and the four-point link is disposed below the trailing arm (5).
Description
Die Erfindung betrifft eine Achsaufhängung für gelenkte Starrachsen in Fahrzeugen, insbesondere in Nutzfahrzeugen.The invention relates to an axle suspension for steered rigid axles in vehicles, in particular in commercial vehicles.
Es werden vielfach Achsaufhängungen für Nutzfahrzeuge eingesetzt, die aus einer Achsführung durch an beiden Fahrzeugseiten angeordnete Längslenker, die einerseits an der Fahrzeugachse und andererseits am Fahrzeugaufbau angelenkt sind, und einem in der Fahrzeugmitte mit einem Zentralgelenk an der Fahrzeugachse verankerten und mit den Enden seiner beiden Streben andererseits am Fahrzeugaufbau angelenkten Dreieckslenker gebildet werden. Zur Stabilisierung ist ferner ein im Allgemeinen U-förmiger Stabilisatorstab vorgesehen.There are often used axle suspensions for commercial vehicles, which are articulated by an axle guide arranged on both sides of the vehicle trailing arm, which are hinged on the one hand to the vehicle axle and the other part of the vehicle body, and anchored in the vehicle center with a central joint to the vehicle axle and with the ends of its two struts on the other hand articulated to the vehicle body wishbone be formed. For stabilization, a generally U-shaped stabilizer bar is further provided.
Nachteilig an diesen bekannten Achsaufhängungen sind der Bauraumbedarf für die Anordnung des Stabilisatorstabes und die kostenaufwändige Gestaltung der Achsaufhängung.A disadvantage of these known axle suspensions are the space required for the arrangement of the stabilizer bar and the costly design of the axle suspension.
Eine vereinfachte Achsaufhängung für Starrachsen ist aus der
Es ist somit eine Aufgabe der Erfindung, eine verbesserte Achsaufhängung bereitzustellen, mit der Nachteile herkömmlicher Achsaufhängungen vermieden werden können. Der Erfindung liegt insbesondere die Aufgabe einer einfacheren, raum- und kostensparenderen Gestaltung einer solchen Achsaufhängung zugrunde, die eine sichere Fahrzeuglängs- und Fahrzeugquerführung und Fahrzeugstabilisierung ermöglicht.It is therefore an object of the invention to provide an improved axle suspension, with the disadvantages of conventional axle suspensions can be avoided. The invention is in particular the task of a simpler, space and cost-saving design such an axle suspension, which enables a secure vehicle longitudinal and transverse vehicle guidance and vehicle stabilization.
Diese Aufgaben werden durch eine Achsaufhängung mit den Merkmalen des Hauptanspruchs sowie durch einen Vierpunktlenker gemäß den Merkmalen des nebengeordneten Anspruchs gelöst. Vorteilhafte Ausführungsformen und Anwendungen der Erfindung sind Gegenstand der abhängigen Ansprüche und werden in der folgenden Beschreibung unter teilweiser Bezugnahme auf die Figuren näher erläutert.These objects are achieved by an axle suspension with the features of the main claim and by a four-point link according to the features of the independent claim. Advantageous embodiments and applications of the invention are the subject matter of the dependent claims and are explained in more detail in the following description with partial reference to the figures.
Die erfindungsgemäße Achsaufhängung für gelenkte Starrachsen in Fahrzeugen, insbesondere in Nutzfahrzeugen, weist in Übereinstimmung mit dem Stand der Technik zwei beidseits der Längsachse des Fahrzeugs angeordnete und sich in Längsrichtung des Fahrzeuges erstreckende, die gelenkte Starrachse mit dem Fahrzeugaufbau vertikal beweglich verbindende Längslenker auf. Die beiden Längslenker sind vorzugsweise im Wesentlichen auf gleicher Höhe angeordnet, können aber auch in Vertikal Richtung versetzt zueinander angeordnet sein.The axle suspension according to the invention for steered rigid axles in vehicles, in particular in commercial vehicles, has in accordance with the prior art two arranged on both sides of the longitudinal axis of the vehicle and extending in the longitudinal direction of the vehicle, the steered rigid axle with the vehicle body vertically movable connecting trailing arm on. The two trailing arms are preferably arranged substantially at the same height, but can also be arranged offset from one another in the vertical direction.
Ferner umfasst die Achsaufhängung einen Vierpunktlenker, der einerseits gelenkig mit der Starrachse und andererseits gelenkig mit dem Fahrzeugaufbau verbunden ist. Die Längslenker dienen zur Fahrzeuglängsführung, während der Vierpunktlenker die Funktionen der Fahrzeuglängs-/Fahrzeugquerführung und der Fahrzeugstabilisierung übernimmt.Furthermore, the axle suspension comprises a four-point link, which is connected on the one hand articulated to the rigid axle and on the other hand articulated to the vehicle body. The trailing arms are used for vehicle longitudinal guidance, while the four-point link takes over the functions of the vehicle longitudinal / transverse vehicle guidance and the vehicle stabilization.
Gemäß allgemeinen Gesichtspunkten der Erfindung sind der Vierpunktlenker und die Längslenker unterhalb des Fahrzeugaufbaus angeordnet, beispielsweise unterhalb eines Fahrzeugrahmens und/oder unterhalb der Fahrzeugrahmenlängsträger. Ferner ist der Vierpunktlenker unterhalb der Längslenker angeordnet. Die Lenkeraufnahmen des Vierpunktlenkers können dabei planparallel zueinander ausgerichtet sein, dies ist aber nicht zwingend.According to general aspects of the invention, the four-point link and the trailing arm are arranged below the vehicle body, for example below a vehicle frame and / or below the vehicle frame side members. Furthermore, the four-point link is arranged below the trailing arm. The handlebar recordings of the four-point link can be aligned plane-parallel to each other, but this is not mandatory.
Ein besonderer Vorzug der vorliegenden Erfindung liegt somit darin, dass durch den Einsatz des unteren Vierpunktlenkers der Panhardstab samt Anbindung entfallen kann. Durch den Entfall des Panhardstabs entfällt auch die Fahrzeugquerbeschleunigung bei einer Federbewegung. Ein weiterer Vorteil der erfindungsgemäßen Achsaufhängung ist, dass die Achsaufhängung zwischen den Fahrzeugrahmenlängsträgern und unterhalb der Fahrzeugrahmenlängsträger auf Höhe der Längslenker keinen Bauraum beansprucht, so dass dieser Bauraum für die Anordnung anderer Fahrzeugkomponenten genutzt werden kann.A particular advantage of the present invention is therefore that can be dispensed through the use of the lower four-point link of Panhardstab together with connection. By eliminating the Panhardstabs also eliminates the vehicle lateral acceleration in a spring movement. Another advantage of the axle suspension according to the invention is that the axle suspension between the vehicle frame side members and below the vehicle frame longitudinal members at the level of the trailing arm takes up no space, so that this space can be used for the arrangement of other vehicle components.
Besonders vorteilhaft ist eine Ausgestaltung der gelenkten Starrachse als luftgefederte Vorderachse, da die wenig Bauraum beanspruchende Achsaufhängung mehr Raum zur Anordnung des Motors und anderer Komponenten an der luftgefederten Vorderachse bietet.Particularly advantageous is an embodiment of the steered rigid axle as luftgefederte front axle, since the little space consuming axle suspension offers more space for the arrangement of the engine and other components on the air suspension front axle.
Die gelenkte Starrachse kann auch als Nachlaufachse oder als Vorlaufachse eines Nutzfahrzeugs ausgebildet sein.The steered rigid axle can also be designed as a trailing axle or as a leading axle of a commercial vehicle.
Gemäß einer vorteilhaften Ausgestaltungsform umfasst der Vierpunktlenker der Achsaufhängung ein im eingebauten Zustand des Vierpunktlenkers sich senkrecht zur Fahrzeuglängsrichtung erstreckendes Mittelteil, an dessen beiden Enden je ein erster Lenkerarm und ein zweiter Lenkerarm fest mit dem Mittelteil verbunden sind, wobei die zwei ersten Lenkerarme gelenkig mit dem Fahrzeugaufbau und die zwei zweiten Lenkerarme gelenkig mit der Starrachse verbunden sind. Im Rahmen der Erfindung besteht die Möglichkeit, dass sich diese vier Lenkerarme von dem Zentralbereich unter Ausbildung eines Kreuzes oder einer H-förmigen Struktur wegerstrecken. Das Mittelteil kann mittig zu den Lenkerarmen angeordnet sein, so dass jeweils zwei Hälften eines Lenkerarms, die auf gegenüberliegenden Seiten des Mittelteils liegen, im Wesentlichen gleich lang sind. Das Mittelteil kann aber auch versetzt zur der Mitte der Lenkerarme angeordnet sein, so dass die auf gegenüberliegenden Seiten des Mittelteils liegenden Teile der Lenkerarme verschieden lang sind. Gemäß einem bevorzugten Ausführungsbeispiel bilden die Längslenker und die Lenkerarme des Vierpunktlenkers einen im Wesentlichen gleich großen Winkel zu einem Fahrzeugrahmenlängsträger des Fahrzeugaufbaus bzw. verlaufen die Längslenker im Wesentlichen parallel zu unterhalb angeordneten Lenkerarmen des Vierpunktlenkers. Der Winkel zu dem Fahrzeuglängsträger ändert sich im Fahrbetrieb natürlich aufgrund der gelenkigen Aufhängung, jedoch bleiben die Längslenker und die Lenkerarme des Vierpunktlenkers gemäß dieser Variante in einer Seitenansicht im Wesentlichen parallel zueinander ausgerichtet.According to an advantageous embodiment of the four-point linkage of the axle suspension comprises in the installed state of the four-point link perpendicular to the vehicle longitudinal direction extending central part, at both ends of which a first link arm and a second link arm are fixedly connected to the middle part, wherein the two first link arms articulated to the vehicle body and the two second link arms are pivotally connected to the rigid axle. Within the scope of the invention, there is the possibility that these four link arms extend away from the central area to form a cross or an H-shaped structure. The middle part can be arranged centrally to the handlebar arms, so that each two halves of a link arm, which lie on opposite sides of the middle part, are substantially equal in length. The middle part can also be arranged offset to the center of the link arms, so that the parts lying on opposite sides of the middle parts of the link arms are different lengths. According to a preferred embodiment, the trailing arm and the control arms of the four-point link form a substantially equal angle to a vehicle frame longitudinal member of the vehicle body or run the trailing arm substantially parallel to below arranged arms of the four-point link. Of course, the angle to the vehicle longitudinal member changes during driving due to the articulated suspension, but remain the trailing arm and the control arms of the four-point link according to this variant in a side view aligned substantially parallel to each other.
Bei einer weiteren Variante dieser Ausgestaltungsform sind die Längslenker so angelenkt, dass sich eine Pfeilung nach vorne in Fahrtrichtung oder in entgegengesetzter Richtung ausbildet, so dass die Längslenker in Querrichtung, d. h. senkrecht zur Fahrzeuglängsachse, mit den Lenkerarmen einen spitzen Winkel ausbilden. Ein Vorteil dieser Variante ist, dass dadurch auftretende Querkräfte besser abgefangen werden können.In a further variant of this embodiment, the trailing arm are hinged so that a sweep is formed forward in the direction of travel or in the opposite direction, so that the trailing arm in the transverse direction, d. H. perpendicular to the vehicle's longitudinal axis, with the handlebars form an acute angle. An advantage of this variant is that transverse forces occurring thereby can be better absorbed.
Nachfolgend werden unterschiedliche Ausführungsvarianten des Vierpunktlenkers beschrieben, die als Vierpunktlenker in der erfindungsgemäßen Achsaufhängung besonders vorteilhaft sind, da die jeweiligen Vierpunktlenker besonders kostensparend herstellbar sind, baulich kompakt ausgeführt sind und/oder eine besonders sichere und stabile Funktionsweise der Achsaufhängung ermöglichen.Different variants of the four-point link will be described below, which are particularly advantageous as a four-point link in the axle suspension according to the invention, since the respective four-point link are particularly cost-effectively to produce structurally are made compact and / or allow a particularly safe and stable operation of the axle suspension.
Besonders vorteilhaft ist eine Ausbildung des Vierpunktlenkers, bei der sich die Lenkerarme vom dem Mittelteil unter Ausbildung einer H-förmigen Struktur wegerstrecken. Dabei kann das Mittelteil stabförmig, zylinderförmig, stangenförmig, rohrförmig oder als Profilstück ausgeführt sein. Das Mittelteil ist insbesondere tordierbar, d. h. verwindbar ausgeführt, wobei die Torsionseigenschaften durch den Fertigungsprozess vorteilhaft vorgegeben werden können.Particularly advantageous is an embodiment of the four-point link, in which the link arms extend away from the central part to form an H-shaped structure. In this case, the central part may be rod-shaped, cylindrical, rod-shaped, tubular or designed as a profile piece. The middle part is in particular twistable, d. H. designed twistable, the torsion properties can be given by the manufacturing process advantageous.
Das Mittelteil und/oder die Lenkerarme können ferner gekröpft ausgeführt sein. Mit einer gekröpften Ausführung kann der Platzbedarf an den vorhandenen Bauraum angepasst werden.The middle part and / or the control arms can also be designed cranked. With a cranked design, the space requirement can be adapted to the available space.
Der Vierpunktlenker kann mehrteilig ausgeführt sein. Beispielsweise kann das Mittelteil stoffschlüssig mit den Lenkerarmen verbunden sein, vorzugsweise durch Kleben oder Schweißen.The four-point link can be made in several parts. For example, the middle part may be materially connected to the control arms, preferably by gluing or welding.
Eine weitere Möglichkeit der erfindungsgemäßen Realisierung sieht vor, dass das Mittelteil über eine formschlüssige Verbindung, vorzugsweise eine Verzahnung, mit den Lenkerarmen verbunden ist, wobei die formschlüssige Verbindung zusätzlich über eine Niet- oder Schraubverbindung gesichert ist. Dadurch kann eine besonders feste lösbare Verbindung realisiert werden.A further possibility of the realization according to the invention provides that the middle part is connected via a positive connection, preferably a toothing, with the handlebar arms, wherein the positive connection is additionally secured by a rivet or screw connection. As a result, a particularly strong detachable connection can be realized.
Die vorgenannten mehrteiligen Ausführungsvarianten bieten den Vorteil, dass zur Herstellung der einzelnen Bestandteile des Vierpunktlenkers kleinere Werkzeuge verwendet werden können, wodurch ein kostengünstiger Herstellungsprozess ermöglicht wird. Ferner wird die Handhabung der Bauteile erleichtert.The abovementioned multi-part variants have the advantage that smaller tools can be used for the production of the individual components of the four-point link, whereby a cost-effective production process is made possible. Furthermore, the handling of the components is facilitated.
Alternativ besteht im Rahmen der Erfindung die Möglichkeit, dass das Mittelteil endseitig einstückig mit den entsprechenden Lenkerarmen verbunden ist, was eine besonders feste Verbindung des Mittelteils an die Lenkerarme ermöglicht.Alternatively, it is within the scope of the invention, the possibility that the central part is integrally connected end to end with the corresponding control arms, which allows a particularly strong connection of the central part of the handlebar arms.
Gemäß einer weiteren Variante besteht das Mittelteil aus zwei Teilen, beispielsweise zwei Hälften, die an einer Verbindungsstelle drehfest, beispielsweise mittels einer reibschlüssigen Verbindung, miteinander verbunden sind. Gemäß einer Variante dieser Ausgestaltungsform kann das Mittelteil aus zwei Teilen bestehen, die jeweils eine Flanschfläche aufweisen, die mit einer Niet- oder Schraubverbindung drehfest verbunden sind. Ein Vorteil dieser Ausführungsvarianten ist wiederum, dass das Mittelteil aus zwei kleineren Einzelteilen zusammengesetzt werden kann, wobei die kleineren Einzelteile wiederum fertigungstechnisch mit kleineren Werkzeugen, z. B. Schmiede- oder Gussformen, kostengünstiger herstellbar sind.According to a further variant, the middle part consists of two parts, for example two halves, which are non-rotatably connected to one another at a connection point, for example by means of a frictional connection. According to a variant of this embodiment, the central part may consist of two parts, each having a flange surface which are rotatably connected to a rivet or screw connection. An advantage of these embodiments is again that the middle part composed of two smaller parts can be, with the smaller items in turn production technology with smaller tools, eg. B. forgings or molds, are less expensive to produce.
Ferner kann das Mittelteil aus einem Kunststoff oder zumindest teilweise aus einem Kunststoff gefertigt sein, wobei der Kunststoff vorzugsweise ein glasfaser- (GFK) oder kohlenstoffstofffaserverstärkter (CFK) Kunststoff ist. Hierbei können die Lenkerarme aus Stahl oder Gusseisen gefertigt werden. Diese Variante bietet den Vorteil, dass die Materialauswahl für die einzelnen Abschnitte des Vierpunktlenkers optimal an die einzelnen Funktionen angepasst werden können, wobei beispielsweise die sicherheitsrelevante Längsführung durch die aus Stahl gefertigten Lenkerarme sichergestellt wird, die weniger sicherheitsrelevante Querstabilisierung durch ein mit einem leichteren Werkstoff gefertigtes Mittelteil bereitgestellt wird. Die Verbindungtechnik zwischen Mittelteil und den Lenkerarmen ist dabei nicht auf eine bestimmte Verbindungstechnik eingeschränkt.Furthermore, the middle part may be made of a plastic or at least partially made of a plastic, wherein the plastic is preferably a glass fiber (GFK) or carbon fiber reinforced (CFK) plastic. Here, the handlebar arms can be made of steel or cast iron. This variant has the advantage that the choice of material for the individual sections of the four-point link can be optimally adapted to the individual functions, for example, the safety-relevant longitudinal guide is ensured by the steel-made handlebars, the less safety-related stabilization by a fabricated with a lighter material middle part provided. The connection between the middle part and the control arms is not limited to a particular connection technology.
Ferner besteht im Rahmen der Erfindung die Möglichkeit, in einer weiteren Ausführungsvariante eine Zahnstangenlenkanlage in den Vierpunktlenker zu integrieren.Furthermore, it is within the scope of the invention to integrate in a further embodiment, a rack and pinion steering system in the four-point link.
Ferner kann das Mittelteil als geschlossener Hohlraum ausgeführt sein, der zur Speicherung eines Fluids ausgebildet ist. Diese Variante bietet den Vorteil, dass das Mittelteil neben der Wankstabilisierung zusätzlich als Speicher für Druckluft oder eines anderen Fluids, z. B. Lenköl, herangezogen werden kann und somit ein separater Fluidspeicher vermieden werden kann, wodurch eine weitere Reduzierung des erforderlichen Bauraums ermöglicht wird.Furthermore, the middle part can be designed as a closed cavity, which is designed to store a fluid. This variant has the advantage that the middle part in addition to the roll stabilization in addition as storage for compressed air or other fluid, eg. As steering oil, can be used and thus a separate fluid reservoir can be avoided, whereby a further reduction of the required space is made possible.
Im Rahmen der Erfindung besteht ferner die Möglichkeit, dass der Vierpunktlenker einteilig ausgeführt ist.In the context of the invention, there is also the possibility that the four-point link is made in one piece.
Hierbei kann in einer ersten Variante das Mittelteil als geschlossenes Rohr ausgeführt sein und die Lenkerarme ein zur Seite hin offenes Profil aufweisen. Das zur Seite hin offene Profil kann beispielsweise aus zwei parallel verlaufenden Kanten gebildet sein. Das ausgebildete Mittelteil ermöglicht eine besonders leichte Bauweise des Vierpunktlenkers.Here, in a first variant, the middle part can be designed as a closed tube and the handlebar arms have a side open profile. The profile that is open to the side can be formed, for example, from two parallel edges. The trained middle part allows a particularly lightweight design of the four-point link.
Ferner können das Mittelteil und die Lenkerarme aus Vollmaterial gebildet sein, was eine besonders hohe Stabilität ermöglicht. In einer Variante dieser Ausgestaltungsform kann das aus Vollmaterial gebildete Mittelteil ferner hohlgebohrt sein, um eine Gewichtsreduktion zu ermöglichen. Diese Ausführungsvariante bietet den Vorteil, dass der Vierpunktlenker geschmiedet werden kann, während ein als geschlossenes Rohr ausgeführtes Mittelteil ein Gießverfahren zur Herstellung erfordert, falls als Material Stahl oder Gusseisen verwendet wird.Furthermore, the middle part and the link arms can be formed of solid material, which allows a particularly high stability. In a variant of this embodiment, the central part formed of solid material can also be hollow-drilled in order to enable a weight reduction. This variant has the advantage that the four-point link can be forged while a designed as a closed tube center part Requires casting process for the production, if used as a material steel or cast iron.
Ferner können am Mittelteil des Vierpunktlenkers Kernstützausnehmungen vorgesehen sein, um den Gussfertigungsprozess sicherer auszugestalten.Furthermore, core support recesses may be provided on the central part of the four-point link in order to design the cast manufacturing process more securely.
In einer weiteren Variante kann das Mittelteil eine nach unten und/oder oben offene Profilstruktur aufweisen. Eine nach unten offene Profilstruktur ist eine im montierten Zustand des Vierpunktlenkers zur Fahrbahnseite hin offene Profilstruktur. Ein derartiges Mittelteil bietet eine besonders hohe Stabilität bei gleichzeitig leichter Bauweise.In a further variant, the middle part can have a profile structure which is open at the bottom and / or at the top. A profile structure open at the bottom is a profile structure that is open towards the roadway side in the mounted state of the four-point link. Such a middle part offers a particularly high stability and at the same time light construction.
Ferner kann das Mittelteil eine Sollversagungsstelle aufweisen. Vorzugsweise ist die Sollversagungsstelle als Sollbruchstelle ausgebildet, so dass bei einer möglichen Überlastung des Vierpunktlenkers der Mittelteil bricht und nicht die Lenkerarme. Eine derartige Sollversagungsstelle kann auch so ausgebildet sein, dass es bei einer Überlastung zu einer Verdrehung im Mittelbereich kommt.Furthermore, the middle part can have a predetermined failure point. Preferably, the target failure point is designed as a predetermined breaking point, so that breaks in a possible overload of the four-point link of the middle part and not the link arms. Such a desired failure point can also be designed so that it comes in an overload to a twist in the central region.
Eine Sollversagungsstelle bzw. Sollbruchstelle im Mittelteil bietet den Vorteil, dass eine Längsführung des Fahrzeugs stets gegeben ist. Dadurch kann eine Notlauffunktion (sog. "limp home mode") nach einem Bruch gewährleistet werden. Alternativ kann bei einem Bruch des Vierpunktlenkers die Quersteifigkeit über Drahtseile oder Ähnliches gewährleistet werden.A Sollversagungsstelle or predetermined breaking point in the middle part has the advantage that a longitudinal guidance of the vehicle is always given. As a result, an emergency function (so-called "limp home mode") can be ensured after a break. Alternatively, in case of a breakage of the four-point link, the transverse rigidity can be ensured by wire ropes or the like.
Die Lageraufnahmen des Vierpunktlenkers können versteift ausgeführt sein.The bearing mounts of the four-point link can be made stiffened.
Es sei betont, dass der erfindungsgemäße Vierpunktlenker auch in anderen Achsaufhängungen zum Einsatz kommen kann. Die erfindungsgemäßen Varianten des Vierpunktlenkers sollen demnach auch unabhängig von der Achsaufhängung als offenbart gelten und beanspruchbar sein. Ein weiterer Aspekt der Erfindung betrifft somit einen Vierpunktlenker gemäß einem der vorstehend beschriebenen Varianten.It should be emphasized that the four-point link according to the invention can also be used in other axle suspensions. The variants of the four-point link according to the invention should therefore also be regarded as disclosed and claimable independently of the axle suspension. Another aspect of the invention thus relates to a four-point link according to one of the variants described above.
Ferner betrifft die Erfindung ein Nutzfahrzeug mit einer Achsaufhängung der gelenkten Starrachse nach einem der vorhergehenden Aspekte. Ferner betrifft die Erfindung ein Vierachser-Nutzfahrzeug mit zwei luftgefederten Vorderachsen, wobei für jede der zwei luftgefederten Vorderachsen eine Achsaufhängung gemäß einem der vorgehenden Aspekte vorgesehen ist.Furthermore, the invention relates to a commercial vehicle with an axle suspension of the steered live axle according to one of the preceding aspects. Furthermore, the invention relates to a four-axle utility vehicle with two air-suspension front axles, wherein for each of the two air suspension front axles an axle suspension is provided according to one of the preceding aspects.
Weitere Einzelheiten und Vorteile der Erfindung werden im Folgenden unter Bezug auf die beigefügten Zeichnungen beschrieben. Es zeigen:
- Figur 1A, Figur 1B und Figur 1C
- eine perspektivische Ansicht, eine Seitenansicht und eine Unteransicht einer Achsaufhängung gemäß einem Ausführungsbeispiel;
- Figur 2A und Figur 2B
- eine perspektivische Ansicht und eine Seitenansicht einer Achsaufhängung für zwei luftgefederte Vorderachsen gemäß einem Ausführungsbeispiel;
Figuren 3bis 7- verschiedene einteilig ausgeführte Ausführungsvarianten des Vierpunktlenkers;
Figuren 8 bis 13B- verschiedene mehrteilig ausgeführte Ausführungsvarianten des Vierpunktlenkers.
- Figure 1A, Figure 1B and Figure 1C
- a perspective view, a side view and a bottom view of an axle suspension according to an embodiment;
- FIG. 2A and FIG. 2B
- a perspective view and a side view of an axle suspension for two air suspension front axles according to an embodiment;
- FIGS. 3 to 7
- various one-piece executed variants of the four-point link;
- FIGS. 8 to 13B
- various multi-part design variants of the four-point link.
Die in
Mit dem Bezugszeichen 3 ist jeweils ein Rahmenlängsträger des dem Fahrzeugaufbau zugehörigen Fahrzeugrahmens eines Nutzfahrzeugs bezeichnet. Der Fahrzeugrahmen ist in üblicher Weise gestaltet und weist auf beiden Seiten des Fahrzeuges je einen derartigen Rahmenlängsträger 3 auf. Zwischen diesen Längsträgern 3 sind üblicherweise Querträger (nicht gezeigt) angeordnet.
Die Achsaufhängung 10 umfasst zwei auf gleicher Höhe jeweils unterhalb der Rahmenlängsträger 1 des Fahrzeugs angeordnete und sich in Längsrichtung des Fahrzeugs erstreckende, die gelenkte Starrachse 6 mit dem Fahrzeugrahmenlängsträger 3 vertikal beweglich verbindende Längslenker 5. Von der gelenkten Starrachse ist in
Zur rahmenseitigen Befestigung der Längslenker 5 weisen die Fahrzeugrahmenlängsträger 3 an ihrem vorderen Ende ein fest angeordnetes Befestigungselements 4 auf, an das ein rahmenseitige Ende 5A der Längslenker 5 angelenkt ist. Das Befestigungselement 4 erstreckt sich vom Rahmenlängsträger 3 vertikal nach unten und ist an der Unterseite des Rahmenlängsträgers 3 sowie über eine seitliche Befestigungsplatte 4A an der Querseite des Rahmenlängsträgers 3 befestigt. Zur achsseitigen Anbindung der Längslenker 5 sind auf dem Achskörper 6 unterhalb der Rahmenlängsträger 3 jeweils gabelförmige Lagerstellen 7 befestigt, auf denen das achsseitige Ende 5B der Längslenker 5 gelagert ist.For frame-side attachment of the trailing
Die Achsaufhängung umfasst ferner einen Vierpunktlenker 30, der einerseits gelenkig mit der gelenkten Starrachse 6 und andererseits gelenkig mit dem Fahrzeugaufbau, hier dem Fahrzeugrahmenlängsträgern 3, verbunden ist. Der Vierpunktlenker besteht aus einem senkrecht zur Längsrichtung des Fahrzeugs angeordneten Mittelteil 31, das mit einem offenen Profilquerschnitt versehen ist und an dem endseitig einstückig die beiden Schenkel 32 des Vierpunktlenkers 30 angeordnet sind, wobei jeder Schenkel 32 aus einem ersten Lenkerarm 32A und einem zweiten Lenkerarm 32B besteht.The axle suspension further comprises a four-
Zur gelenkigen Verbindung des Vierpunktlenkers 30 an die beiden Rahmenlängsträger 3 über das Befestigungselement 4 sowie zur gelenkigen Anbindung an den Achskörper 6 weisen die Lenkerarme 32 des Vierpunktlenkers an ihrem dem Zentralbereich 31 abgewandten Ende jeweils eine hohlzylindrische Lageraufnahme 1 auf, nachfolgend auch als Lagerauge bezeichnet. In den Lageraufnahmen 1 befindet sich jeweils ein eingepresstes Lager 2, beispielsweise ein Molekularlager oder ein Gleitlager, mit seitlichen Pratzen, zur Befestigung des Vierpunktlenkers an dem Rahmen bzw. Achskörper 6. Die Gelenkverbindungen der Längslenker 5 und die Gelenkverbindungen 1, 2 des Vierpunktlenkers 30 sind kardanisch beweglich ausgeführt. Die Ausrichtung der Pratzen 2 zur Befestigung des Vierpunktlenkers an Rahmen 3 bzw. Achskörper 6 kann beliebig variieren und hängt im Wesentlichen von den kinematischen bzw. elastokinematischen Gegebenheiten ab. Die Lageraugen sind nicht zwangsläufig Bestandteil des Vierpunktlenkers. Sie können auch nachträglich angebracht, z. B. angeschweißt, angeschraubt werden. Die Lagerung des Vierpunktlenkers kann mit den üblichen aus dem Stand der Technik bekannten Lagerungstechniken, beispielweise Molekularlager, Gleitlager, aktiv bzw. adaptiv, etc., realisiert sein.For the articulated connection of the four-
Damit benötigt die Achsaufhängung im Raum zwischen den Rahmenlängsträgern 3 und zwischen den Längslenkern 5 oberhalb des Vierpunktlenkers keinen Bauraum, der somit vorteilhafterweise anderweitig zur Nutzung zur Verfügung steht. Bei der gezeigten Achsführung übernehmen die oberen Längslenker 5 "nur" die Längsführung, d. h., es werden Zug- und Druckkräfte in das Fahrwerk übertragen. Der untere Vierpunktlenker 30 übernimmt die Funktionen der Fahrzeuglängs-/Fahrzeugquerführung und der Fahrzeugstabilisierung. Der Vierpunktlenker bestimmt auch die Steifigkeit des Fahrwerks um die Vertikalachse, beispielsweise beim Bremsen. Das Mittelteil des Vierpunktlenkers dient hierbei insbesondere als Torsionsbereich und trägt hauptsächlich zur Wankstabilisierung des Fahrzeugs bei und überträgt die Fahrzeugquerkräfte. Das Mittelteil des Vierpunktlenkers kann die folgenden Aufgaben übernehmen: Stabilisierung des Fahrzeugs, Seitenkraftaufnahme, Aufnahme einer Lenkgetriebebefestigung (Lenkanlage wird aufgeschraubt) oder Integration einer Lenkanlage, d. h., das Vierpunktlenkermittelteil dient gleichzeitig als Gehäuse der Lenkanlage.Thus, the axle suspension in the space between the
Der Aufbau des Vierpunktlenkers 30 wird nachfolgend noch detaillierter im Rahmen der Beschreibung zu der
Gemäß dem in den
In
In
Nachfolgend werden in den
Jede der beschriebenen Vierpunktlenkerausführungen umfasst ein Mittelteil, an dessen beiden Enden je ein Schenkel im Wesentlichen senkrecht zum Mittelteil drehfest angeordnet ist, wobei ein erster Abschnitt der Schenkel jeweils durch einen der ersten Lenkerarme und ein zweiter Abschnitt der Schenkel jeweils durch einen der zweiten Lenkerarme gebildet werden. Hierbei können die ersten Lenkerarme mit unterschiedlicher oder gleicher Länge zu den zweiten Lenkerarmen ausgebildet sein.Each of the four-point handlebar embodiments described comprises a central part, at each of which a leg is arranged rotationally fixed substantially perpendicular to the central part, wherein a first portion of the legs are each formed by one of the first link arms and a second portion of the legs respectively by one of the second link arms , Here, the first link arms may be formed with different or equal length to the second link arms.
Zunächst werden in den
An den Schenkeln endseitig angeformt sind jeweils die hohlzylinderförmigen Lageraugen 1 mit eingepressten Lagern 2 zur Lagerung des Vierpunktlenkers an der Achsaufhängung bzw. dem Fahrzeugrahmen. Die Lenkerarme 32A und 32B haben einen H-förmigen bzw. doppelt-U-förmigen Profilquerschnitt mit den Seitenkanten 33, 34. Der Profilquerschnitt des Mittelteils 31 ist nach oben und unten hin offen und weist einzelne in Längsrichtung verlaufende Profilstege 38 auf, die das Mittelteil in einzelne rechteckförmige Profilvertiefungen 39 unterteilen. Der Profilquerschnitt des Mittelteils 31 weist ferner zwei diagonal verlaufende Profilstege 37 auf, die die rechteckförmigen Profilvertiefungen 39 durchqueren und sich mittig treffen. Ferner ist das Mittelteil 30 zu den Schenkeln 32 hin mit leicht abnehmender Dicke ausgebildet, so dass die Dicke in der Mitte 35 größer ist als am Endbereich 36 des Mittelteils 31.The hollow cylindrical
Ein besonderer Vorzug dieses Vierpunktlenkers 30 liegt darin, dass das offene Bauteilprofil besonders leicht gieß- oder schmiedbar ist.A particular advantage of this four-
Gemäß einer besonders vorteilhaften Ausführungsvariante kann in dem Mittelteil eine Sollbruchstelle vorgesehen sein. Der Bereich, in dem die Sollbruchstelle angeordnet werden kann, ist durch den mit "Z" markierten Bereich in
Die Ausführungsvariante 40 eignet sich besonders gut für eine Herstellung im Schmiedeverfahren.The
Mehrteilig ausgeführte Ausführungsbeispiele des Vierpunktlenkers sind nachfolgend in den
Dadurch können für die Herstellung der einzelnen Teile des Vierpunktlenkers kleinere Werkzeuge verwendet werden, was die Herstellungskosten reduziert.As a result, smaller tools can be used for the production of the individual parts of the four-point link, which reduces the manufacturing costs.
Eine weitere Variante 90 des Vierpunktlenkers ist in
In den
Das Hohlprofil besteht wiederum aus einem U-förmigen Querschnitt mit den äußeren Kanten 123, 124. Ein besonderer Vorzug dieser Ausführungsvariante ist das besonders vorteilhafte Leichtbaupotential.
Obwohl die Erfindung unter Bezugnahme auf bestimmte Ausführungsbeispiele beschrieben worden ist, ist es für einen Fachmann ersichtlich, dass verschiedene Änderungen ausgeführt werden können und Äquivalente als Ersatz verwendet werden können, ohne den Bereich der Erfindung zu verlassen. Zusätzlich können viele Modifikationen ausgeführt werden, um eine bestimmte Situation oder ein bestimmtes Material an die Lehre der Erfindung anzupassen, ohne den zugehörigen Bereich zu verlassen.Although the invention has been described with reference to particular embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the pertinent portion.
So können je nach Ausführungsvariante des Vierpunktlenkers unterschiedliche Fertigungsverfahren zum Einsatz kommen, beispielsweise Gieß- und Schmiedetechnik, Sintern, Laser-3D-Druck, mechanische Bearbeitung, etc.. Insbesondere können neben Gusseisen und Stahl auch allgemeine Legierungen, Schmiedestahl, faserverstärkter Kunststoff oder Kompositwerkstoffe zum Einsatz kommen. Grundsätzlich können die auftretenden Kräfte der beiden Bauteilhälften mit unterschiedlichen aus dem Stand der Technik bekannten Verbindungsmethoden übertragen werden, beispielsweise mittels einer reibschlüssigen Verbindung, z. B. Klemmschrauben, mittels Formschluss, z. B. Passschrauben, Bolzen zur Übertragung der Scherkräfte, einer Verrasterung, einer Verzahnung, mittels einer Nietverbindung, oder durch Adhäsion/Kohäsion (Kleben). Eine Verbindung der Schenkel durch Kleben mit dem Mittelteil bietet den besonderen Vorteil, dass das Material keine thermisch induzierten Spannungen erhält oder lokale Spannungserhöhungen durch die Verschraubung. Das Mittelteil des Vierpunktlenkers kann aus einem Rundmaterial oder einem beliebig anderen Formmaterial bestehen.Thus, depending on the design variant of the four-point link different manufacturing processes are used, such as casting and forging, sintering, laser 3D printing, mechanical processing, etc .. In particular, in addition to cast iron and steel and general alloys, forged steel, fiber reinforced plastic or composite materials for Use come. In principle, the occurring forces of the two component halves can be transmitted with different connection methods known from the prior art, for example by means of a frictional connection, for. B. clamping screws, by means of positive locking, z. B. dowel bolts, bolts for transmitting the shear forces, a Verrasterung, a toothing, by means of a riveted joint, or by adhesion / cohesion (gluing). A connection of the legs by gluing with the middle part has the particular advantage that the material does not receive thermally induced stresses or local increases in voltage through the screw. The middle part of the four-point link may consist of a round material or any other shape material.
Folglich soll die Erfindung nicht auf die offenbarten Ausführungsbeispiele begrenzt sein, sondern die Erfindung soll alle Ausführungsbeispiele umfassen, die in den Bereich der beigefügten Patentansprüche fallen.Accordingly, the invention should not be limited to the disclosed embodiments, but the invention is intended to embrace all embodiments which fall within the scope of the appended claims.
- 11
- Lageraufnahmebearing seat
- 22
- Pratzepaw
- 33
- RahmenlängsträgerFrame rail
- 44
- Befestigungselementfastener
- 4A4A
- Befestigungsplattemounting plate
- 55
- LängslenkerTrailing arm
- 5A, 5B5A, 5B
- Endbereiche der LängslenkersEnd portions of the trailing arm
- 66
- Achskörperaxle body
- 77
- Halterungselementsupporting member
- 88th
- Kragarmcantilever
- 8A8A
- Achsfaustaxle stub
- 1010
- AchsaufhängungAxle
- 2020
- Achsaufhängung bei zwei VorderachsenAxle suspension with two front axles
- 3030
- VierpunktlenkerFour-point link
- 3131
- Mittelteilmidsection
- 3232
- Schenkelleg
- 32A, 32B32A, 32B
- Erster, zweite LenkerarmFirst, second link arm
- 33, 3433, 34
- Profilkantenprofile edges
- 3535
- Mittelbereich des MittelteilsMiddle area of the middle part
- 3636
- Endbereich des MittelteilsEnd portion of the middle part
- 3737
- Diagonalstegdiagonal web
- 3838
- Querstegcrosspiece
- 3939
- Profilvertiefungprofile depression
- 4040
- VierpunktlenkerFour-point link
- 4141
- Mittelteilmidsection
- 4242
- Schenkelleg
- 42A, 42B42A, 42B
- Erster, zweiter LenkerarmFirst, second link arm
- 43,4443.44
- Profilkantenprofile edges
- 4545
- Dreieckförmige ProfilvertiefungTriangular profile recess
- 5050
- VierpunktlenkerFour-point link
- 5151
- Mittelteilmidsection
- 5252
- Schenkelleg
- 52A, 52B52A, 52B
- Erster, zweiter LenkerarmFirst, second link arm
- 53, 5453, 54
- Profilkantenprofile edges
- 6060
- VierpunktlenkerFour-point link
- 6161
- Mittelteilmidsection
- 6262
- Schenkelleg
- 62A, 62B62A, 62B
- Erster, zweiter LenkerarmFirst, second link arm
- 7070
- VierpunktlenkerFour-point link
- 7171
- Mittelteilmidsection
- 7272
- Schenkelleg
- 72A, 72B72A, 72B
- Erster, zweiter LenkerarmFirst, second link arm
- 7373
- Hohlbohrunghollow bore
- 8080
- VierpunktlenkerFour-point link
- 8181
- Mittelteilmidsection
- 8282
- Schenkelleg
- 82A, 82B82A, 82B
- Erster, zweiter LenkerarmFirst, second link arm
- 83, 8483, 84
- Profilkantenprofile edges
- 8585
- SchweißnahtWeld
- 8686
- Verbindungsbereich der SchenkelConnection area of the legs
- 9090
- VierpunktlenkerFour-point link
- 9191
- Mittelteilmidsection
- 9292
- Schenkelleg
- 92A, 92B92A, 92B
- Erster, zweiter LenkerarmFirst, second link arm
- 9595
- Klebestellesplice
- 100100
- VierpunktlenkerFour-point link
- 101101
- Mittelteilmidsection
- 102102
- Schenkelleg
- 102A, 102B102A, 102B
- Erster, zweiter LenkerarmFirst, second link arm
- 105105
- DurchmesservergrößerungIncrease in diameter
- 106106
- SchweißnahtWeld
- 107107
- Flanschflächeflange
- 108108
- Verschraubungscrew
- 110110
- VierpunktlenkerFour-point link
- 111111
- Mittelteilmidsection
- 112112
- Schenkelleg
- 112A, 112B112A, 112B
- Erster, zweiter LenkerarmFirst, second link arm
- 115, 116115, 116
- Teilstücke des MittelteilsPieces of the middle part
- 120120
- VierpunktlenkerFour-point link
- 121121
- Mittelteilmidsection
- 122122
- Schenkelleg
- 122A, 122B122A, 122B
- Erster, zweiter LenkerarmFirst, second link arm
- 123, 124123, 124
- Profilkantenprofile edges
- 125125
- Hohlzylinderförmiges MittelstückHollow cylindrical center piece
- 126126
- DurchmesservergrößerungIncrease in diameter
- 127127
- Verzahnunggearing
- 128128
- Anschlussbereich der SchenkelConnection area of the legs
- 129129
- Verschraubungscrew
- 130130
- VierpunktlenkerFour-point link
- 131131
- Mittelteilmidsection
- 132132
- Schenkelleg
- 132A, 132B132A, 132B
- Erster, zweiter LenkerarmFirst, second link arm
- 135135
- Geschlossener HohlraumClosed cavity
- 136136
- Verbindungsbereichconnecting area
Claims (15)
zwei beidseits der Längsachse des Fahrzeugs angeordnete und sich in Längsrichtung des Fahrzeugs erstreckende, die gelenkte Starrachse (6) mit dem Fahrzeugaufbau (3) vertikal beweglich verbindende Längslenker (5); und
einen Vierpunktlenker (30), der einerseits gelenkig mit der gelenkten Starrachse (6) und anderseits gelenkig mit dem Fahrzeugaufbau verbunden ist, wobei der Vierpunktlenker (30) und die Längslenker (5) unterhalb des Fahrzeugaufbaus angeordnet sind und der Vierpunktlenker unterhalb der Längslenker (5) angeordnet ist.Axle suspension (10; 20) for steered rigid axles (6) in vehicles, in particular commercial vehicles, comprising
two arranged on both sides of the longitudinal axis of the vehicle and extending in the longitudinal direction of the vehicle, the steered rigid axle (6) with the vehicle body (3) vertically movable connecting trailing arm (5); and
a four-point link (30), on the one hand hinged to the steered rigid axle (6) and on the other hand articulated to the vehicle body, wherein the four-point link (30) and the trailing arm (5) are arranged below the vehicle body and the four-point link below the trailing arm (5 ) is arranged.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014011859.2A DE102014011859A1 (en) | 2014-08-09 | 2014-08-09 | Axle suspension for steered rigid axles in vehicles, in particular in commercial vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2982528A1 true EP2982528A1 (en) | 2016-02-10 |
EP2982528B1 EP2982528B1 (en) | 2017-11-01 |
Family
ID=53298086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15001677.2A Active EP2982528B1 (en) | 2014-08-09 | 2015-06-05 | Axle suspension for steered rigid axles in vehicles, especially commercial vehicles |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2982528B1 (en) |
CN (1) | CN105365519A (en) |
BR (1) | BR102015014392B1 (en) |
DE (1) | DE102014011859A1 (en) |
RU (1) | RU2718202C2 (en) |
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US11203240B2 (en) | 2019-04-19 | 2021-12-21 | Divergent Technologies, Inc. | Wishbone style control arm assemblies and methods for producing same |
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CN107571704A (en) * | 2017-09-22 | 2018-01-12 | 江苏汤臣汽车零部件有限公司 | A kind of air suspension forks arm |
CN108466528A (en) * | 2018-02-07 | 2018-08-31 | 北汽福田汽车股份有限公司 | Stabilizator rod structure, chassis and vehicle |
JP2019137207A (en) * | 2018-02-09 | 2019-08-22 | トヨタ自動車株式会社 | Suspension arm and manufacturing method therefor |
JP7102761B2 (en) * | 2018-02-09 | 2022-07-20 | トヨタ自動車株式会社 | Manufacturing method of arm member |
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EP2684714A1 (en) * | 2012-07-10 | 2014-01-15 | MAN Truck & Bus AG | Four point linkage for the connection of a rigid axle to the frame of a commercial vehicle |
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DE19643263C2 (en) * | 1996-10-19 | 2002-06-20 | Deere & Co | Suspended, suspended axle suspension |
ITTO20060572A1 (en) * | 2006-08-01 | 2008-02-02 | Sistemi Sospensioni Spa | LONGITUDINAL ARM FOR A REAR SUSPENSION WITH INDEPENDENT WHEELS FOR MOTOR VEHICLES |
RU65852U1 (en) * | 2007-04-02 | 2007-08-27 | Открытое акционерное общество "КАМАЗ" | FOUR-WAY CAR CHASSIS |
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2014
- 2014-08-09 DE DE102014011859.2A patent/DE102014011859A1/en not_active Withdrawn
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2015
- 2015-06-05 EP EP15001677.2A patent/EP2982528B1/en active Active
- 2015-06-17 BR BR102015014392-3A patent/BR102015014392B1/en active IP Right Grant
- 2015-07-08 RU RU2015127623A patent/RU2718202C2/en active
- 2015-08-07 CN CN201510479703.1A patent/CN105365519A/en active Pending
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DE102004014610A1 (en) * | 2004-03-23 | 2005-10-27 | Zf Friedrichshafen Ag | Four-point link |
WO2006067551A1 (en) * | 2004-12-21 | 2006-06-29 | Renault Trucks | Suspension for a vehicle |
DE102007022411A1 (en) * | 2007-05-10 | 2008-11-13 | Zf Friedrichshafen Ag | Four-point link |
EP2684714A1 (en) * | 2012-07-10 | 2014-01-15 | MAN Truck & Bus AG | Four point linkage for the connection of a rigid axle to the frame of a commercial vehicle |
Cited By (1)
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US11203240B2 (en) | 2019-04-19 | 2021-12-21 | Divergent Technologies, Inc. | Wishbone style control arm assemblies and methods for producing same |
Also Published As
Publication number | Publication date |
---|---|
RU2015127623A3 (en) | 2018-12-14 |
BR102015014392A2 (en) | 2017-07-11 |
RU2718202C2 (en) | 2020-03-31 |
CN105365519A (en) | 2016-03-02 |
DE102014011859A1 (en) | 2016-02-11 |
RU2015127623A (en) | 2017-01-11 |
EP2982528B1 (en) | 2017-11-01 |
BR102015014392B1 (en) | 2022-10-18 |
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